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Zone: 3
Can handle temperatures down to -40 Celsius or -40 Fahrenheit

Shape: Upright

Mature Size:
2-3’ tall and 3-4’ wide

Big cone-shaped flowers start white, turn to pink in summer, and deep burgundy in fall



It’s no doubt, this Bombshell belongs in a calendar – she is a beauty. It’s an improved paniculata type Hydrangea, which means it produces big cone-shaped flowers. And this Hydrangea produces a ton of flowers — it will turn heads in your yard! What makes this plant special is that it combines its prolific flower production with a compact form that will fit perfectly into any yard in suburbia. So find it a sunny spot and plant, water, relax.

Planting instructions:

Planting your Bombshell is easy.

  1. Dig a hole twice the width of the pot, and deep enough so that when you place the plant in the hole, the top of the root ball is level with the ground around the hole.
  2. Fill in the space around the plant with a planting soil mix (you can buy this where you buy the plant), tamp the area down with your foot, and then give it a good watering to help the plant settle in.
  3. Relax

Get the most out of your beautiful plant.

If you do the bare minimum of making sure your plant gets some water when it’s hot out in the summer, it will do fine and perform well for you. But to see what its fuller potential can be, here are a few other tips:

1. Mulch

An easy way to keep weeds down around your plant, and to keep it moist with less watering is to throw a 2 inch layer of mulch around the base of the plant – basic bagged “landscape mulch” from your local garden centre will do the trick.

2. Fertilize

Hydrangeas don’t need a lot of fertilizer, but they do benefit from a shot of good all purpose fertilizer in the spring when the leaves start to sprout. A fertilizer with a higher middle number (e.g. 15-30-15 or 5-10-5) will work best.

3. Prune

The best time to do a little trimming on your hydrangea is in early spring, just before it starts to grow again (just after you see signs of life is okay too). Removing dead flowers from the previous year is a good start. You can also cut back the top 1/3 of the woody branches.

Important tip: don’t trim after June 1 – you might cut off the new flower buds if you do!

4. Relax

Regardless of your gardening knowledge, you can relax. Use the sign up form on the left sidebar to receive regular updates on basic care for your Bombshell. We’ll send you a friendly, seasonal reminder when it’s time to mulch, fertilize or prune your plant. It’s bloomin’ easy.